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Heliene 625W Bifacial Solar Panel (Pallet of 28) Silver Frame – 156HC M10 NTYP SL - B GRADE

Heliene 625W Bifacial Solar Panel (Pallet of 28) Silver Frame – 156HC M10 NTYP SL - B GRADE

Regular price $6,554.50 -17% $5,423
$0.30/watt
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$193.67/per panel
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Heliene

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Heliene 625W Bifacial Solar Panel (Pallet of 28) Silver Frame – 156HC M10 NTYP SL - B GRADE

Heliene 625W Bifacial Solar Panel (Pallet of 28) Silver Frame – 156HC M10 NTYP SL - B GRADE

Available
MPN No: 156HC M10 NTYP SL - B GRADE
Regular price $6,554.50 -17% $5,423
$0.30/watt
Sale price
$193.67/per panel

PLT (28 pcs)
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Regular price $6,554.50 -17% $5,423

Heliene 625-640W Bifacial Solar Panel Pallet (28) – 156HC M10 NTYP SL - B GRADE

The Heliene B-Grade N-Type Bifacial Solar Panel Pallet offers a cost-effective option for solar installers, contractors, and buyers seeking high-output photovoltaic modules at discounted pricing.

B-Grade Solar Panels – Manufacturer Overflow

These Heliene solar panels are classified as B-Grade manufacturer overflow inventory. During factory flash testing, the panels produced wattage ratings that did not align with the exact wattage range designated for their original production batch. Rather than being sorted into a single standard wattage category, these panels are offered together at a discounted price.

Each pallet contains 28 solar panels with individual wattage ratings ranging from 625W to 640W. Panels may have different wattage ratings within the same pallet. A specific wattage or combination of wattages is not guaranteed.

B-Grade in this listing refers to the manufacturer's wattage sorting classification. It does not, by itself, establish that a panel is damaged or defective.

Call for more information:  1-800-230-7004

Important Warranty Notice – No Warranty Included

These B-Grade Heliene solar panels are sold without a manufacturer or seller product or performance warranty.

Although the standard Heliene product datasheet references manufacturer warranty coverage, those warranty terms do not apply to the B-Grade panels offered in this listing.

Please review the product classification, mixed wattage range, and warranty exclusion before purchasing.

Key Features and Benefits

  • Discounted B-Grade Inventory: Manufacturer overflow panels offered outside standard wattage-sorted inventory.
  • High-Output N-Type Technology: Monocrystalline solar cells designed for strong energy production and low degradation characteristics.
  • Bifacial Energy Generation: Captures reflected sunlight through the rear of the module for additional energy production under suitable installation conditions.
  • Half-Cut Cell Design: Helps reduce internal electrical losses and improve module performance.
  • Silver Anodized Aluminum Frame: Durable construction suitable for compatible solar mounting systems.
  • Transparent Backsheet: Supports rear-side solar energy collection.
  • Tempered Solar Glass: Provides protection against environmental exposure and mechanical stresses.
  • MC4 Connectors: Supports connection to compatible solar PV wiring and equipment.
  • Full-Pallet Purchasing: Convenient bulk inventory for contractors, installers, and larger solar projects.

Why Choose B-Grade Solar Panels?

B-Grade solar panels can offer substantial purchasing value when a project does not require every module to carry the exact same nameplate wattage.

These Heliene panels originated from manufacturer overflow associated with flash-test wattage sorting. They are being sold as mixed-wattage inventory rather than a uniform standard-wattage pallet.

For installers who can account for differences in module output during system design, this inventory provides an alternative to purchasing individually sorted, standard-grade modules.

Mixed-Wattage Pallet Considerations

Individual panel wattages may vary throughout the pallet. Buyers should not assume that all panels have the same rated output.

When designing an array, use the actual module labels and electrical characteristics to verify string compatibility, inverter input requirements, and system sizing. Mixed-wattage modules may affect string performance when connected together.

Product Specifications

Specification Details
Manufacturer Heliene
Product Series 156HC M10 NTYP SL Bifacial
Product Classification B-Grade – Manufacturer Overflow
Product Type N-Type Monocrystalline Bifacial Solar Panel
Individual Panel Wattage 625W–640W
Panels per Pallet 28
Combined Nominal Pallet Wattage Range 17,500W–17,920W (17.5–17.92kW DC)
Wattage Distribution Mixed; individual wattages and quantities not guaranteed
Solar Cell Technology 156 Half-Cut M10 N-Type Monocrystalline Cells
Module Construction Framed Glass–Backsheet
Bifaciality Factor 80% ± 5%
Module Efficiency 22.37%–22.90% (nominal 625W–640W models)
Maximum Power Voltage (Vmp) 48.22–48.77V
Maximum Power Current (Imp) 12.96–13.12A
Open-Circuit Voltage (Voc) 57.23–57.69V
Short-Circuit Current (Isc) 13.71–13.83A
Maximum Series Fuse Rating 30A
Maximum System Voltage 1,500V DC
Dimensions per Panel 2464 × 1134 × 35mm (97.01 × 44.65 × 1.38 in)
Weight per Panel 31kg (68.34 lbs)
Combined Panel Weight per Pallet 868kg (1,913.52 lbs), excluding packaging
Frame Material Double-Webbed Anodized Aluminum Alloy
Frame Finish Silver
Front Glass 3.2mm Fully Tempered High-Transmission Solar Glass
Backsheet Transparent
Junction Box IP68 Rated, 3 Bypass Diodes
Output Cables 4mm² (12 AWG)
Connectors Multi-Contact / Stäubli MC4
Operating Temperature -40°C to +85°C
Temperature Coefficient of Pmax -0.30%/°C
Temperature Coefficient of Voc -0.25%/°C
Temperature Coefficient of Isc +0.045%/°C
Mechanical Load Test – Front 5,400Pa
Mechanical Load Test – Rear 2,400Pa
Fire Classification Type 1
Certifications Referenced by Series Datasheet IEC 61215, IEC 61730, CSA C22.2 No. 61730; exact B-Grade unit certification status not separately verified
Manufacturer Warranty None – Not Included
Performance Warranty None – Not Included
Sales Unit 1 Full Pallet (28 Panels)

Frequently Asked Questions

What does B-Grade mean for these Heliene solar panels?

These panels are manufacturer overflow from flash testing. Their measured wattages did not align with the designated wattage sorting range for their original production batch, so they are being offered as mixed-wattage B-Grade inventory.

Are B-Grade solar panels defective?

Not necessarily. The B-Grade classification for this inventory is based on wattage sorting, not a confirmed defect. However, the classification does not constitute an additional performance or condition guarantee.

Will every solar panel have the same wattage?

No. Individual panel ratings vary within the advertised range, and the specific mix of wattages is not guaranteed.

How many solar panels come on a pallet?

Each pallet contains 28 Heliene bifacial solar panels. This product is sold as a full pallet.

Do these B-Grade Heliene panels include a warranty?

No. These panels are sold without a manufacturer or seller product or performance warranty. Standard warranty terms referenced in the manufacturer's datasheet do not apply to this inventory.

Can mixed-wattage panels be installed together?

Potentially, yes. A qualified system designer should verify the actual electrical characteristics of the modules and confirm compatibility with the selected inverter, wiring configuration, and mounting equipment.

Are these bifacial solar panels?

Yes. They use N-Type bifacial cell technology with a transparent backsheet, allowing rear-side energy collection when installation conditions provide reflected sunlight.

Can I purchase individual panels?

This listing is for a full pallet only. Individual panel sales are not included in this offer.